Padlock.



No. 695,345. Patented Mar. ll, I902.

F. SULEY.

PADLUCK.

(Application filed. Apr. 28, 1898.)

(No Model.)

UNITED Sermons Patnnr rnrcn.

FRANK SOLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE MILLER LOOKCOMPANY, OF PHILADELPHIA, PENNSYLVANIA, A COR- PORATION OF PENNSYLVANIA.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 69 5,345, dated March11, 1902.

Application filed April 23, 1898. Serial No. 678,600. No model.)

ject being to provide for the more effective operation of theshackle-retaining lever by the key.

In the accompanying drawings, Figure 1 is a view of the lock with theface-plate removed and the parts shown in the locked position. Fig. 2 isa similar view with the fixed wards of the look also removed and showingthe shackle-retaining lever withdrawn by the action of the key, so as topermit the shackle to swing open. Fig. 3 is a view of the lock with theface-plate removed and illustrating the action of the guard-plate forpreventing the opening of the look by hammering upon the face of thesame, so asto jar the shackleretaining lever out of position; and Figs.4 and 5 are views illustrating modifications of the invention.

The casing 1 of the lock is composed, by preference, of front and backplates struck up out of sheet metal in the usual manner, although thiscasing may be constructed in any desired way.

The shackle 2 is hung to a pin 3 in the casing and has a notched end 4for engagement with a hook 5 on the retaininglever 6, the latter beinghung to a pin 7 in the casing and being retained in looking position bymeans of one end of a spring 9, which is coiled around a stud 10 andacts upon a pin 11 on said lever 6, the other end of the spring actingupon a pin 12 on the heel of the shackle 2, so as to tend to swing saidshackle open when its hooked nose is released from engagement with thehook of the retaining-lever 6.

A short lever 13 is hung to a stud let on the lock-casing, one arm ofthis lever acting upon the depending portion of the lever 6 and theother being adapted to be acted upon by the bit of the key inserted intothe rotary keyhub 15, as shown in Fig. 2, so as to effect such operationof the lever O as to withdraw its hook from engagement with the hookednose of the shackle," the fixed wards 18 preventing the operating of thelever 13 by the key un= less the latter is properly bitted.

The use of the key-lever 13, acted on by the key and acting upon theshackle-retaining lever 6, permits of a quicker operation of said lever6 than when the same is acted upon directly by the key, as in the lockshown in my prior patent, No. 601,087.

heap locks of this class are open to the ob jection that theshackle-retaining lever can by a sudden blow upon the lock-case besubjected to such a jar as to cause it to move and release its hold uponthe shackle, and with the view of preventing this I hang upon the stud10 in the lock-case a guard-plate 16,which is acted upon by a spring17,whereby it is normally retained in the position shown in Figs. 1 and2, in which position it does not inter fere with the free swingingmovement of the lever 6 under the action of the key in order to releasethe shackle and open the lock. The inner end of the guard-plate 16 whenit moves, however, swings across the path which will be followed by thelever 6 in its opening movement, and the spring 17, which acts upon saidguard-plate 16, is preferably lighter than the spring 9, which acts uponthe retaining-lever 6. Hence if the blowis delivered upon the lock-casein the direction of the arrow as, Fig. 3, the guard-plate 16 will bemoved before the lever 6 is affected, because the upwardly-projectingportion of-said guard-plate is almost directly at right angles to theline of thrust imparted to the lock-case by the force of such blow andbecause also said guard-plate is not under such restraint as theretaining-lever on account of the lighter spring which actuates thesame. Even if the two springs 9 and 17 have the same force, however, theposition of the guard-plate 16 Will cause itto move in advance of themovement of the lever 6, and the inner end of the guard-plate willtherefore be carried down into the path of the inner end of the lever 6,so that the movement of the latter will be arrested and the release ofthe shackle from the control of the lever will be prevented.

It is not essential to the proper carrying out of my invention that theguard -plate should be mounted so as to swing. For instance, in Fig. 4 Ihave illustrated a modified form of lock in which a slotted guard-plate16 is mounted upon pins 10 in the lock-case, so as to slide across thepath of the lockinglever 6 when a blow is delivered upon thelock-casing, said slide-plate being normally held out of lockingposition by a spring 17. Neither is it essential that the guard-plateshould be mounted in the casing, so as to engage with the locking-lever,as a reverse construction may be adopted, if desired. Thus in Fig. 5 Ihave shown a lock in which a guard-plate 16 is hung to the locking-leverand is acted upon by a spring 17 so as normally to be held free fromengagement with a lug 10 in the lock case, thus permitting free movementof the locking-lever under the I action of the key, the guard-plate,however, swinging into position to engage with the lug 1O when a blow isstruck upon the lock-case for the purpose of jarring open the lock. Thelug 1O thus constitutes the fixed point of bearing for the guard-plate16 as do the pin 10 for the plate 16 and the pins 10" for the plate 16.

Having thus described my invention, I

ent

The combination of the shackle, a shackleretaining lever, a spring forretaining the same in looking position, means operated by the key torelease said lever from engagement with the shackle, a guard-platemounted so as to move into position to lock the lever when a blow isstruck upon the lock-casing, and a spring acting on said guard-plate tohold it normally out of action, said spring being lighter than thespring which operates the shackle retaining lever, substantially asspecified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANK SOLEY.

Witnesses:

GEORGE L. BATTERSBY, EDWARD S. MULLIN.

claim and desire to secure by Letters Pat-

